| 摘要 |
<p>PROBLEM TO BE SOLVED: To effectively reduce dust in exhaust emission irrespective of the kind of fuel oil by disposing natural stones selected from chrysotile, dolomite, and calcite which radiate electromagnetic wave in a fuel supply system for an automobile in the state of contact. SOLUTION: An exhaust emission control device 14 disposed to compose the overcoat pipe of a fuel pipe 13 uses as an effective component one kind of or two or more kinds of natural stones selected from chrysotile, dolomite, and calcite which radiate electromagnetic wave in combination. It is desirable that these natural stones contain the small amount of metallic components such as aluminum, copper, or iron and these natural stones are crushed into powder or particles. These particles are combined by binder such as synthetic resin and molded and they are packed in a container made of plastic or metallic thin plate when they are used, thereby greatly reducing the amount of dust in the exhaust emission.</p> |
